/**
 * 浮点数求和
 */
export function accAdd(num1, num2) {
  var r1, r2, m
  try {
    r1 = num1.toString().split('.')[1].length
  } catch (e) {
    r1 = 0
  }
  try {
    r2 = num2.toString().split('.')[1].length
  } catch (e) {
    r2 = 0
  }
  m = Math.pow(10, Math.max(r1, r2))
  // return (num1*m+num2*m)/m;
  return Math.round(num1 * m + num2 * m) / m
}

/**
 * 浮点型相减
 */
export function accSub(num1, num2) {
  var r1, r2, m, n
  try {
    r1 = num1.toString().split('.')[1].length
  } catch (e) {
    r1 = 0
  }
  try {
    r2 = num2.toString().split('.')[1].length
  } catch (e) {
    r2 = 0
  }
  m = Math.pow(10, Math.max(r1, r2))
  n = (r1 >= r2) ? r1 : r2
  return (Math.round(num1 * m - num2 * m) / m).toFixed(n)
}

/**
 * 浮点型相乘
 */
export function accMul(num1, num2) {
  var m = 0
  var s1 = num1.toString()
  var s2 = num2.toString()
  try {
    m += s1.split('.')[1].length
  // eslint-disable-next-line no-empty
  } catch (e) {
  }
  try {
    m += s2.split('.')[1].length
  // eslint-disable-next-line no-empty
  } catch (e) {
  }
  return Number(s1.replace('.', '')) * Number(s2.replace('.', '')) / Math.pow(10, m)
}

/**
 * 浮点型相除
 */
export function accDiv(num1, num2) {
  var t1, t2, r1, r2
  try {
    t1 = num1.toString().split('.')[1].length
  } catch (e) {
    t1 = 0
  }
  try {
    t2 = num2.toString().split('.')[1].length
  } catch (e) {
    t2 = 0
  }
  r1 = Number(num1.toString().replace('.', ''))
  r2 = Number(num2.toString().replace('.', ''))
  return (r1 / r2) * Math.pow(10, t2 - t1)
}
